METHOD AND APPARATUS FOR IMPROVING CONVERSION FROM SD TO HDTV

摘要

Image enhancement is achieved by a combination of linear and non-linear techniques. The linear technique is preferably peaking, while the non-linear techniques is preferably LTI. The peaking is applied to non-edge areas of the image. The LTI is applied to edge areas of the image. LTI is of the sub-pixel variety. The image enhancement device is preferably part of a device for converting standard definition to high definition signals.